Digital Commons Network^™

The Yeast Rrna Biosynthesis Factor Ebp2p Is Also Required For Efficient Nuclear Division, Costin N. Ionescu, Sofia Origanti, Michael A. Mcalear

Biological Sciences Faculty Research and Publications

Molecular genetic analysis of the yeast Ebp2 protein has revealed that it is an essential, nucleolar protein that functions in the rRNA biosynthesis pathway. Temperature-sensitive ebp2-1 mutants are defective in the processing of the 27 SA precursor rRNA, and the point substitutions that disrupt this activity cluster towards the central, more highly conserved region of the Ebp2 protein. We report here that other ebp2 mutants exhibit deficiencies associated with defects in chromosome segregation. Yeast cells bearing a 50 amino acid C-terminal truncation allele (ebp2ΔC50) display a slow-growth phenotype and exhibit an increased percentage of cells with …

Quarterly Meeting, Wku Board Of Regents

Board of Regents Documents

Minutes of WKU Board of Regents quarterly meeting. Agenda items: resolution in honor of Cornelius Martin, 2004-05 operating budget, transportation project, emeritus faculty, honorary degree for Ed Hamilton, purchase of property, creation of Parking & Transportation Services, personnel actions and salaries, WKU-Owensboro and tuition policy.

On The Green Vol. 35 No. 3 October 29, 2004, Gallaudet University

2001-2010

On the Green is an internal publication of Gallaudet College, which later became Gallaudet University. It notified employees of updates around the campus and in the broader community, including new construction and the establishment of new academic programs. Running until 2010, it was supplanted by various forms of online mass communications across multiple audiences.

Graduate Council Report No. 2004-2005-2, University Of Rhode Island Faculty Senate

Faculty Senate Committee Reports and Appendices

No abstract provided.

Spartan Daily, October 29, 2004, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 123, Issue 43

Gel Shift Analysis Of The Empa Promoter Region In Vibrio Anguillarum, Steven M. Denkin, Pedja Sekaric, David R. Nelson

Cell and Molecular Biology Faculty Publications

Background:

The induction of metalloprotease encoded by empA in Vibrio anguillarum occurs at high cell density in salmon intestinal mucus. Previously we have shown that there are significant differences in empA expression in two strains of V. anguillarum, M93Sm and NB10. It is hypothesized that differences in empA regulation are due to differences in binding of regulatory elements.

Results:

Two strains of V. anguillarum, M93Sm and NB10, were examined and compared for the presence of DNA regulatory proteins that bind to and control the empA promoter region. Gel mobility shift assays, using a digoxigenin (DIG)-labeled oligomer containing a …

The Bison, October 29, 2004

The Bison Newspapers

No abstract provided.

The Latent Membrane Protein 1 Of Epstein-Barr Virus Establishes An Antiviral State Via Induction Of Interferon-Stimulated Genes, Jun Zhang, Subash C. Das, Catherine Kotalik, Asit K. Pattnaik, Luwen Zhang

Nebraska Center for Virology: Faculty Publications

Epstein-Barr virus (EBV) infection is associated with several human cancers. Latent membrane protein 1 (LMP-1) is one of the key viral proteins required for transformation of primary B cells in vitro and establishment of EBV latency. In this report, we show that LMP-1 is able to induce the expression of several interferon (IFN)-stimulated genes (ISGs) with antiviral properties such as 2’-5’ oligoadenylate synthetase (OAS), stimulated trans-acting factor of 50 kDa (STAF- 50), and ISG-15. LMP-1 inhibits vesicular stomatitis virus (VSV) replication at low multiplicity of infection (0.1 pfu/cell). The antiviral effect of LMP-1 is associated with the ability of LMP-1 …

Evaluating Forensic Dna Evidence, Dan E. Krane

Biological Sciences Faculty Publications

No abstract provided.

Evidence That D1 Processing Is Required For Manganese Binding And Extrinsic Protein Assembly Into Photosystem Ii, Johnna L. Roose, Himadri B. Pakrasi

Faculty Publications

Photosystem II (PSII) is a large membrane protein complex that catalyzes oxidation of water to molecular oxygen. During its normal function, PSII is damaged and frequently turned over. The maturation of the D1 protein, a key component in PSII, is a critical step in PSII biogenesis. The precursor form of D1 (pD1) contains a C-terminal extension, which is removed by the protease CtpA to yield PSII complexes with oxygen evolution activity. To determine the temporal position of D1 processing in the PSII assembly pathway, PSII complexes containing only pD1 were isolated from a CtpA-deficient strain of the cyanobacterium Synechocystis 6803. …

The Heme Oxygenase(S)-Phytochrome System Of Pseudomonas Aeruginosa, Rosalina Wegele, Ronja Tasler, Yuhong Zeng, Mario Rivera, Nicole Frankeinberg-Dinkel

Faculty Publications

For many pathogenic bacteria like Pseudomonas aeruginosa heme is an essential source of iron. After uptake, the heme molecule is degraded by heme oxygenases to yield iron, carbon monoxide, and biliverdin. The heme oxygenase PigA is only induced under iron-limiting conditions and produces the unusual biliverdin isomers IXβ and IXδ. The gene for a second putative heme oxygenase in P. aeruginosa, bphO, occurs in an operon with the gene bphP encoding a bacterial phytochrome. Here we provide biochemical evidence that bphO encodes for a second heme oxygenase in P. aeruginosa. HPLC, 1H, and 13C NMR studies indicate that BphO is …

Probe-Level Correction In Analysis Of Affymetrix Data, Fenghai Duan

Probability & Statistics Seminar

For some of Affymetrix GeneChips, it is necessary to correct the texture effect on the images before doing the common background subtraction and normalization. In this study, we explore a way to assess and correct the texture effect. Without this correction, we found that the texture effect affected the performance of the conventional approach in identification of significantly expressed genes. Furthermore, we found that treating probes as "subjects" in the same probe set and using repeated measures analysis can help remove the local artifacts from the residual images, which are commonly associated with conventional approaches. Finally, we also tried to …

Volume 42, Number 10: October 29, 2004, University Of North Dakota

University Letter Archive

No abstract provided.

Washington University Record, October 29, 2004

Washington University Record

No abstract provided.

Whalesong 2004-10-29, N/A N/A

Whalesong

No abstract provided.

The Hilltop 10-29-2004, Hilltop Staff

The Hilltop: 2000 - 2010

No abstract provided.

The Male Of Culicoides Reevesi Wirth, With A Redescription Of The Female And New Seasonal Activity, Distribution, And Biting Records (Diptera: Ceratopogonidae), William L. Grogan Jr., Gustavo R. Spinelli, Robert A. Phillips, David L. Woodward

Western North American Naturalist

The previously unknown male of the biting midge, Culicoides reevesi Wirth, is described and illustrated; the female is also redescribed and this species is reassigned to the leoni group. Previously known from California, Arizona, and New Mexico, C. reevesi is recorded for the 1st time from Utah (new record). Females of this aggressive, hematophagous species were collected while biting humans during evening crepuscular periods in California. Females exhibited a strong attraction to CO₂ traps, and seasonal surveillance demonstrated that host-seeking occurred from late May until mid-October in both California and Utah. Small numbers of males were also …

A Relocation Technique For Black-Tailed Prairie Dogs, Kelly A. Roe, Christopher M. Roe

Western North American Naturalist

Relocations of black-tailed prairie dogs have occurred both to save individual prairie dogs from urban development and to reestablish populations that have been extirpated. Unfortunately, however, many past relocation efforts rarely exceeded 40% retention. Many factors have contributed to very low retention rates in past relocation efforts including lack of (1) suitable habitat, (2) proper artificial burrow systems, (3) aboveground acclimation cages or pens, and (4) skilled people conducting the relocations. In an attempt to increase prairie dog relocation success, we developed techniques that are easy to implement, promote high retention, and effectively conserve labor, financial resources, and prairie dog …

Native Plant Community Composition And Genetic Diversity Associated With Long-Term Weed Invasions, Brian A. Mealor, Ann L. Hild, Nancy L. Shaw

Western North American Naturalist

Many studies have assessed genetic changes in exotic plant species in their native and introduced ranges, but none have focused on genetic variation in native plant species in response to exotic invasion. We examine characteristics of native plant communities within and outside old (>25 year) invasions of Acroptilon repens (Russian knapweed) and Cardaria draba (hoary cress). We also document genetic variability of 4 native grass populations (Hesperostipa comata [needle and thread], Achnatherum hymenoides [Indian ricegrass], Sporobolus airoides [alkali sacaton], and Poa secunda [Sandberg bluegrass]) from 2 areas: adjacent to and within weed invasions. Native plant species richness and …

Fleas (Siphonaptera: Ceratophyllidae, Ctenophthalmidae) From Rodents In Five Southwestern States, Glenn E. Haas, Nixon Wilson, Chris T. Mcallister

Western North American Naturalist

Nine species of fleas were collected incidental to a survey of rodents for molecular studies in Arizona, Colorado, New Mexico, Texas, and Utah, south of latitude 38°N. Three species were parasites of woodrats, Neotoma spp.: Orchopeas neotomae Augustson was confirmed for Texas, and the distribution patterns of O. agilis (Rothschild) and O. schisintus (Jordan) were more clearly defined. Four species were parasites of mice, Peromyscus spp.: Aetheca wagneri (Baker) was a new flea for P. gratus Merriam, the distribution of O. leucopus (Baker) was extended to far west Texas, Plusaetis sibynus (Jordan) was new for Utah and N. lepida, …

Mink Predation On Radio-Tagged Trout During Winter In A Low-Gradient Reach Of A Mountain Stream, Wyoming, Jason W. Lindstrom, Wayne A. Hubert

Western North American Naturalist

No abstract provided.

Reproduction And Demography Of Townsendia Aprica (Asteraceae), A Rare Endemic Of The Southern Utah Plateau, Vincent J. Tepedino, Sedonia D. Sipes, Terry L. Griswold

Western North American Naturalist

Townsendia aprica (Asteraceae: Astereae), a rare pulvinate perennial of the Southern Utah Plateau, was listed as threatened under the U.S. Endangered Species Act in 1985. Here we report on the reproductive biology and pollination of this little-known species and provide an estimate, for a single site-year, of size-specific reproductive effort. Last Chance townsendia appears a short-lived perennial that begins reproducing in its 2nd year (1.5–2.0 cm diameter). Maximum reproductive effort is attained with the 2.5–4.0 cm diameter size class: 38% of these plants produced 84% of the flower heads. Few plants survived past the 4-cm size class. The species is …

Leafhopper Assemblages On Native And Reseeded Grasslands In Southwestern Montana, James A. Bess, Kevin M. O'Neill, William P. Kemp

Western North American Naturalist

Using sweep samples, we surveyed leafhoppers (Homoptera: Cicadellidae) on grassland sites in the Gallatin Valley of Montana during 1988 and 1991. We sampled 12 sites representing 2 habitat types defined by their dominant plant species in an undisturbed state (Stipa comata / Bouteloua gracilis and Festuca idahoensis / Agropyron spicatum). At half of the sites the native plant communities were present, whereas the remainder had been reseeded with either Agropyron spicatum (to replace the S. comata / B. gracilis assemblage) or Bromus inermis (to replace the F. idahoensis / A. spicatum assemblage). We found at least 66 …

Marmot Distribution And Habitat Associations In The Great Basin, Chris H. Floyd

Western North American Naturalist

In this study I describe the distribution and habitat associations of yellow-bellied marmots (Marmota flaviventris) in the Great Basin, compare my findings with those of E.R. Hall during his 1929–1936 survey and later surveys, and discuss potential reasons for changes in marmot distribution over time. I found 62 marmot burrow sites in 18 mountain ranges, mostly in rocky meadows situated on well-drained slopes between 2100 m and 3000 m elevation. Marmots were generally found near burrows dug within talus slopes, talus-like rock piles, or clusters of massive boulders. Oceanspray (Holodiscus discolor) was the shrub most commonly …

Chimes: October 29, 2004, Calvin College

Chimes

Les Jacques de Chimes reign supreme by Ricardo de los Carillones

Evictions render students homeless by Amanda Whitcomb

Home winning streak continues by Dan Kotman

59th Fall Music Festival by Nana Yaa Dodi

Students speak out on election issues by Joo Eun Kim

Presidential election 2004: Guide to voting on the issues by Maria Post

Calvin student electorate polled by Shiko Nguru

Students advise taking a year off by Christian Ocier

Concert music fills the chapel by Joseph W. Singley

Index [And Table Of Contents] To Volume 64

Western North American Naturalist

No abstract provided.

Dynamics Of A Dwarf Bear-Poppy (Arctomecon Humilis) Population Over A Sixteen-Year Period, K. T. Harper, Renée Van Buren

Western North American Naturalist

A population of the dwarf bear-poppy (Arctomecon humilis Coville, Papaveraceae) at Red Bluff, Washington County, Utah, was monitored twice annually between 1987 and 2002. This is a narrowly endemic, gypsophilous species that has been formally listed as endangered since 1979. During the 16 years of observation, density of this species has fluctuated between 3 and 1336 individuals on the 0.07-ha monitoring plot. Moderate to large recruitments of seedlings occurred in 1992, 1995, and 2001. Seedling recruitments from a large, long-lived seed bank are triggered by abundant precipitation during the February–April period. At least 5.0 cm of rainfall is required …

Evaluating The Use Of Morphometric Measurements From Museum Specimens For Sex Determination In Mountain Plovers (Charadrius Montanus), William M. Iko, Stephen J. Dinsmore, Fritz L. Knopf

Western North American Naturalist

The Mountain Plover (Charadrius montanus) is a shorebird species endemic to the dry, terrestrial ecosystems of the Great Plains and southwestern United States. Breeding Bird Survey data suggest that Mountain Plover populations have declined by >60% in the last 30 years. A better understanding of the population dynamics of the Mountain Plover is important in determining future management goals for this species. However, this effort is hampered by the inability to determine the sex of Mountain Plovers accurately under field conditions. In an effort to develop a simple method for sexing plovers in the hand, we measured external …

First Pleistocene Jumping Mouse (Zapus, Zapodinae, Rodentia) From Utah, Dennis R. Ruez Jr., Christopher J. Bell

Western North American Naturalist

Two of the Little Dell Dam fossil localities produced the 1st Pleistocene records of the jumping mouse Zapus from Utah. We describe these teeth in detail and compare their morphology with both extinct and extant jumping mouse taxa. Although it is not possible to confidently assign these specimens to a particular species, the Little Dell Dam fossils are clearly distinct from the only living jumping mouse (Zapus princeps) currently known from Utah. The paracone is attached to the rest of the occlusal surface of the upper 1st and 2nd molars in modern Z. princeps from Utah; the paracone …

Full Issue, Vol. 64 No. 4

Western North American Naturalist

No abstract provided.